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AP Bio 18

QuestionAnswer
Operator a segment of DNA that is a regulatory on/off switch usually positioned within the promoter
Operon entire stretch of DNA that includes the operator, the promoter, and the genes they control
repressor a protein that can switch off the operon prevents gene transcription by binding to the operator and blocking RNA polymerase
regulatory gene creates the repressor
corepressor a molecule that cooperates with a repressor protein to switch an operon off
Created by: carolinem82
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